Grinnell, G. B. (1999). George Bird Grinnell papers: From the holdings of Manuscripts and Archives, the Yale University Library ([Mikrofilm-Ausg.].). Scholarly Resources.
Chicago-Zitierstil (17. Ausg.)Grinnell, George Bird. George Bird Grinnell Papers: From the Holdings of Manuscripts and Archives, the Yale University Library. [Mikrofilm-Ausg.]. Wilmington, Dela: Scholarly Resources, 1999.
MLA-Zitierstil (9. Ausg.)Grinnell, George Bird. George Bird Grinnell Papers: From the Holdings of Manuscripts and Archives, the Yale University Library. [Mikrofilm-Ausg.]. Scholarly Resources, 1999.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.